9. The Beatles, 'Sgt. Pepper’s Lonely Hearts Club Band' (1967)
The Beatles invented so many things with this album, it's easy to overlook the fact that they invented the summer album as we know it – the kind that arrives in a frenzy of anticipation, blows minds, starts arguments, expands over time. It was the soundtrack to the Summer of Love, along with classics like Hendrix's Are You Experienced, Jefferson Airplane's Surrealistic Pillow and the debuts from Moby Grape and the Doors. Yet no matter how many times you listen, you can still find new details to obsess over: the bongos at the end of "Getting Better," the rubber bassline of "With A Little Help From My Friends," or the proto-metal guitar that kicks it all off.
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